<div class="mst">
  <nz-alert nzType="success" nzMessage="Success Text"> </nz-alert>
  <nz-alert nzType="info" nzMessage="Info Text"> </nz-alert>
  <nz-alert nzType="warning" nzMessage="Warning Text"> </nz-alert>
  <nz-alert nzType="error" nzMessage="Error Text"> </nz-alert>
</div>
